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Finding the Fourth Proportional to 380,083.64, 524,529.42 and 245,947.64

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Solution

The fourth proportional to 380,083.64, 524,529.42 and 245,947.64 is: 339,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,083.64 : 524,529.42 = 245,947.64 : x
  2. Step 2: Convert to fraction form
    380,083.64/524,529.42 = 245,947.64/x
  3. Step 3: Cross multiply
    380,083.64x = 524,529.42 × 245,947.64
  4. Step 4: Simplify right side
    380,083.64x = 129,006,772,959.57
  5. Step 5: Solve for x
    x = 129,006,772,959.57/380,083.64
  6. Step 6: Final answer
    x = 339,416.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.